I concur, it is fine as is; the more common expression is "information is power". As Kelly suggests this expression/sentiment is somewhat cliche, so either way I might try to elaborate a bit :)
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Joseph WeissmanMay 9 '11 at 3:16

I think this is too short and vague. You mention 'real power', as opposed to what . . . imaginary power? And what sort of power? The power to act, buy or sell? Combining vague 'power' combined with the general word 'information' creates more questions than answers.

Your sentiment seems to be along the line of the phrase "time is money" - yet this phrase is creates a much clearer picture because the reader can relate time to money.

Assuming that 'power' means 'ability', you could try something like: "Power is useless without information" - a very relevant statement in today's economic and geopolitical state of affairs, yet I suggest you replace the word 'power' with something more specific to create a clearer picture.